'I am constantly taken by surprise at just how many people this story appears to be touching'

UK Sky Sports presenter Simon Thomas says he's been left "weak and broken" after wife Gemma was misdiagnosed by doctors three times ahead of her death in November.

Thomas has been posting on his blog, A Grief Shared, since Gemma died just three days after she was diagnosed with acute myeloid leukaemia.

The former children's TV presenter has been praised for his "astonishing honesty" after writing that he is fearful, vulnerable and tear-filled and "if by admitting this it helps one person, then it's worth it".

The post, which was written in the early hours of the morning, explains how well-meaning people have encouraged the father to "be strong".

"Now before I go any further, I know that the vast majority of people who have said this over the past nine weeks have said it because they care," he wrote.

"If they didn’t care, they wouldn’t bother to even write, but I want to explain why being strong is so very very hard and why actually, right now, I am anything but strong".

Gemma's tragic story began when the 40-year-old had flu-like symptoms and was told to 'rest at home'.

"Physically I feel the weakest I’ve ever felt, I couldn’t be strong even if I tried," he wrote.

"But out of the weakness of my sleep deprived body I have managed to keep my head above the water. I manage to get my boy up each morning and get him ready for school, I manage to keep myself busy and not leave myself too many long periods alone in our house with my thoughts, and I somehow manage to get to the end of each day.

"I’m not being physically strong, I’m merely surviving at the moment until that day the sleep begins to return and my body starts to grow in strength again."

If you, or someone you know if suffering with a cancer diagnosis, contact Cancer Council's support helpline on 13 11 20.